Hall Effect Sensors Rotary Hall Sensor > 55250 55250 Angular Displacement Sensor Description The Littelfuse 55250 Series of rotary absolute position sensors provide angular measurement between 0 and 105 degrees with the option of a full 360 degrees of movement. The internal design of the sensor uses non-contact magnetic Hall Effect technology as opposed to more common wiper-based resistive products. This unit is immune to the performance limitations of the wiper-based products that are associated with mechanical wear or contamination. The 55250’s package design commonly finds applications within all types of vehicle and industrial segments. It has been designed to operate in the harsh environments of the inudstrial and commercial vehicle and the sensor has an operating temperature range between -40°C and 125°C. This unit incorporates automotive grade EMI/EMC and reverse polarity protection and mates with a Delphi type sealed connector. Features Dimensions Dimensions in mm • 105° Angular sensing range • Absolute rotary position sensor • Analog output • Non-contact measuring • EMC protection • Integral connector Benefits • Long life - no wear components • High speed • Unaffected by harsh environments • Small robust package Applications • Pedal position • Automotive pedal position • Absolute rotary encoder • Shaft position • Lever position • Float level sensor • Non-contacting potentiometer Sensor Interface Geometry © 2015 Littelfuse Revised: 10/27/15 Specifications are subject to change without notice. littelfuse.com Hall Effect Sensors Rotary Hall Sensor > 55250 55250 Angular Displacement Sensor Specifications Hall Effect Device Rotational Analog Output Operating Voltage Recommended Vdc 4.5 to 5.5 Over Voltage Absolute Max 1 Vdc 20 Reverse Voltage Absolute Max 1 Vdc -10 Supply Current mA - max. 16 Output Current mA - max. -8 to +8 Vdc 0.5 to 4.5 Programmed Sensing Range Degrees 105 Resolution Degrees 0.11 Accuracy Degrees ±4 Response Time ms-Max 4 Start-up Time ms-Max 15 °C -40 to +125 Mating Connector Delphi 12162181 Pin Out Pin A Pin B Pin C Ground V(in) Signal Programmed Output Voltage Range Temperature Operating Note: 1. This is a stress rating only. Functional operation is not implied for additional load/life information. Output Signal Customization Options 5.0V Customized versions available. Contact Littelfuse for details. • Angular sensing range • Output type: Analog, PWM or SPI 4.5V Part Numbering System 55250 - 00 - 00 - 0 0.5V 0.0V 0º 52.5º 105º Series Hall Option Cable Length Termination Packaging Packaging Option Packaging Specification Bulk © 2015 Littelfuse Revised: 10/27/15 Specifications are subject to change without notice. Bulk Quantity 500 Quantity & Packaging Code N/A Taping Width N/A littelfuse.com